New coloring-matter obtained by the actioh of tetrazo-diamido benzole on phenols



Uisifi en Senses EEATJTNT @ssiea RUPERT GREVILLE WILLIAMS, OF ALBANY, NEW YORK.

NEW COLOiilNG-MATTER OBTAlNED BY THE ACTIGN 0F TETRAZO-DlAMlDO BENZOLE 0N PHENOLS.

SPECIFICATION forming part of Letters IPatent No. 384,342, dated June 12,1888.

Application filed November 1?, i587.

of Great Brituin,-and a resident of Albanyfin; the conntyoi-Alhuuy and State of New York, have invented certain new and useful 1m provenienls in the Manufacture of Coloring- Matter, of which the following is a specifies I tion.

My invention relates to the production of coloring-matters obtained by the notion of ietrazo-diamido benzole (hydrochloi'ate) and its hoinologues on resorcin, the phenols, benzoio, the ox yhenzoic acids, and alphanaphthol and. their substitution products, by which coloring-matters soluble in alkalies, but insoluhln in dilute acids, are obtained; on aniline and its homolognes beia-uaphthol, thenuphlhylnniinesand lheirsubslitntion pro: ducts, by which (*oioring mailers insoluble both in ulkalies and dilute acids are obtained, andon thesulpho acids ofall theahoveamines, amides, and phenols, and their substitution products, by which eolori rig-matters extremely soluble in diluie alkalies are obtained.

As an example as to the manner of carrying out my invention practically, I obtain a brown coloring-limiter hy dissolving 10.8 pounds of phenyline-diamine or the proper quantity of its homologous in one hundred and eighty pounds oi wider and sevenly pounds of llll1Iiatie acid oi 2" 'liauin. I then cool ihe solu- (ion to id eentigrmle. A solution of fourteen pounds ol'nilrile of sodium in five times its weight olfiu'uter is then slowly run into ihe above acid solution of" phenyliue diamine hy- Serial No. 955,400. (X0 specinu us) hydroehlorat e'thus obtained is run into twen Lytwo pounds of resorein and one hundred and twenty pounds ofocetate of soda dissolved in onethousand pounds of water, The brown coloring-matter is at once precipitated, and as soon as all the the free mineral acid is taken up, which is generally after [he lapse of al'ew hours, the color may he filtenedofiiand, ifneo essary, purified in the usual manner.

This color is in the form ofa reddish-brown powder, and is insoluble in dilute acids or water, but soluble in alkaiies.

What I claim as new, and desire to secure by Letters Patent, is

The new coloring-limitersobtained by the actiou of telrazodimnido henzole (hydrochlorate) or its homologues on resoroin, the phi,- nols, henzoie, the oxyhenzoieaeids, and alphanephthol, or their substitution products, on aniline and itshomologues, lwl'a-nnphlhol and the napthylamines, or their substitution products, and on the su-lpho-noids oi the above amines, amides, and phenols, or their suhsth tution products, whichooloringmailers have ihe properties heroin set l'orlvh.

Signed at New .iork, in the (onniy of New York and State of New York, this i-lih day of November, A. I), 1887. v

lll ll-Ilii' lililil'llllili li'il'rhiiilll It is hereby certified that in Letters'Patent No. 384,342,?fanted June 12, 1888 upon the application of Rupert Greville Williams, of Albany, New York, for an ilpp rov emem in New Coloring-Matter Obtained by the Action of Tetrazo-Diamido Benzole on Phenols, an error ,ap pears in the printed specifie ation requiring correction, as follows: In line-33 the elause to 10 cegtigrade, should read, to .1 0 centigmde; and that the Letters Patent should be reed with this col reotion thereih that the same may conform to the record of the arise in the ?atent Office.

signed, ooiintersigned, and sealed. thi' 3a day-of Jul A. D. 1888. t D. L, 'HAW' m s,

' Assistant SecretaWJ tkaEMemn Opuhtersignd BENTON J HALL,

4 Commissioner of Patents. 

